We made 4x4 inches (four coasters) each. The technique was using pre-exposed screens and powdered glasses in range of colors.
I picked my base colors white for all 4 coasters. Then I picked the screen pattern shaped like cherry blossom branch and used different color powder glass for each coasters : Dark blue, light blue, green and red.
Here is before picture:
|4 cherry blossom branch coasters, Sept25,13|
|The template that I used|